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  1. Exhausts and Downpipes
    Ultimate Racing Catback Exhaust - 2012 Civic Si Ultimate Racing Civic Si Exhaust Thread...
  2. Video Room
  3. Engine, Engine Swaps, Pulleys, Injectors
    The Temple of VTEC - Honda and Acura Enthusiasts Online - Articles - Good comparison and info: 2012 Si - On The Dyno